Don’t really have the greatest pictures now but these are a pair of pulley I designed and CNC’ed for a couple buddies of mine from back in the old Avenger days. They are one-off pieces specifically designed for their cars…3.0L v6 built bottom ends mated to OEM 2.5L heads with custom supercharger kits on them. The inner sheave is the OEM diameter 5 rib sheave that drives the PS and alt on these cars, however the outer sheave is the 6 rib spacing from the 3.0L 3rd gen Eclipse, however I ramped up the diameter about 25% to overdrive the SC a bit to produce 14lbs of boost. Get’s more boost while reducing belt slippage up top. Should hopefully net around 425-450wheel on these cars when tuning is all said and done.
6061-t6 machine beauty
My Porsche customers have a boot load of this stuff booked up and some one off throttle bodies coming soon as well for these Avenger guys. I’ll post more as I get it done…
I did make a really short run of crank pulleys for the 420a turbo guys in the past, but this beats that one out in terms of production run numbers. Not many SC’ed avengers running around these days, let alone those with hybrid motor swaps
I’ve got some more CNC stuff upcoming for some big dawg Porsche stuff fairly soon. Some reworked engine brackets and components for some old RSR replica, biturbo setup(twin K27HF’s), and some brackets and intake parts for an even older 908
Goldfish doesn’t buy billet, and sure as hell don’t pay for my 962 Shit isn’t going to get done if I keep passing favors, I want to race with my PCA guys again ya know
Really depends on what the part is. I start by designing everything in Solidworks CAD based on customers information and/or dimensions. If those are not available, I need to either have an OEM part to pull based dimensions off of(as I did with this pulley) or the components in tandem with it to work everything up which takes additional time. Typical CADs can take me anywhere from 15minutes to weeks to develop and sort out bugs. Actual machining can go pretty quick, it just depends on how busy I am at the time and who’s scheduled in first. I work down a list and don’t start any machine work until the previous customer is taken care of and product shipped out. Keeps it simple and on track that way.
These pulleys from my initial measurements and CAD’s to the final CNC’ed part took me about 4 weeks, but were also behind other work on the schedule and just had to wait. CAD took me a few days to work up in between pulling dimensions. Actual CNC work took about a week, but had to wait about three weeks to start as other CNC work had to be finished prior.
Shit isn’t going to get done if I keep passing favors, I want to race with my PCA guys again ya know 